Patents by Inventor Arnoldus Portengen

Arnoldus Portengen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vial and cap assembly having means for sealing a tube projecting beyond the vial reservoir
    Patent number: 5217129
    Abstract: The invention relates to a vial for storing a substance in a condition in which it is excludeded from the ambient air, comprising a reservoir having a closed end and an open end, the open end communicating with a closable tubular member via a neck portion. The vial comprises a cap having a central aperture which is sealingly but detachably connected to the neck portion of the reservoir, while the tubular member constitutes a separate component of the vial and is proportioned so that it can be connected in the aperture of the cap in a circumferentially sealing manner, a rear end portion of the tubular member extending within the neck portion of the reservoir and a front portion which comprises a sealing means extending beyond the reservoir.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: June 8, 1993
    Assignee: Duphar International Research B.V.
    Inventor: Arnoldus Portengen